diff --git a/package.json b/package.json
index 77990b7b..4e2af5a6 100644
--- a/package.json
+++ b/package.json
@@ -71,7 +71,7 @@
     "minizlib": "^2.1.1",
     "plist": "^3.0.4",
     "popper.js": "^1.16.1",
-    "prismjs": "^1.25.0",
+    "prismjs": "^1.26.0",
     "snabbdom": "^0.7.4",
     "snabbdom-to-html": "^6.0.0",
     "source-map-support": "^0.5.21",
diff --git a/src/muya/lib/prism/loadLanguage.js b/src/muya/lib/prism/loadLanguage.js
index f068561a..3843aec0 100644
--- a/src/muya/lib/prism/loadLanguage.js
+++ b/src/muya/lib/prism/loadLanguage.js
@@ -33,6 +33,7 @@ export const transfromAliasToOrigin = langs => {
       }
     }
   }
+
   return result
 }
 
@@ -40,9 +41,7 @@ function initLoadLanguage (Prism) {
   return async function loadLanguages (langs) {
     // If no argument is passed, load all components
     if (!langs) {
-      langs = Object.keys(languages).filter(function (lang) {
-        return lang !== 'meta'
-      })
+      langs = Object.keys(languages).filter(lang => lang !== 'meta')
     }
 
     if (langs && !langs.length) {
@@ -54,8 +53,8 @@ function initLoadLanguage (Prism) {
     }
 
     const promises = []
-    // the user might have loaded languages via some other way or used `prism.js` which already includes some
-    // we don't need to validate the ids because `getLoader` will ignore invalid ones
+    // The user might have loaded languages via some other way or used `prism.js` which already includes some
+    // We don't need to validate the ids because `getLoader` will ignore invalid ones
     const loaded = [...loadedLanguages, ...Object.keys(Prism.languages)]
 
     getLoader(components, langs, loaded).load(async lang => {
@@ -66,17 +65,20 @@ function initLoadLanguage (Prism) {
           lang,
           status: 'noexist'
         })
-        return
+      } else if (loadedLanguages.has(lang)) {
+        defer.resolve({
+          lang,
+          status: 'cached'
+        })
+      } else {
+        delete Prism.languages[lang]
+        await import('prismjs/components/prism-' + lang)
+        defer.resolve({
+          lang,
+          status: 'loaded'
+        })
+        loadedLanguages.add(lang)
       }
-
-      delete Prism.languages[lang]
-
-      await import('prismjs/components/prism-' + lang)
-      defer.resolve({
-        lang,
-        status: loadedLanguages.has(lang) ? 'cached' : 'loaded'
-      })
-      loadedLanguages.add(lang)
     })
 
     return Promise.all(promises)
diff --git a/src/muya/lib/utils/importMarkdown.js b/src/muya/lib/utils/importMarkdown.js
index 2678b7af..5f367804 100644
--- a/src/muya/lib/utils/importMarkdown.js
+++ b/src/muya/lib/utils/importMarkdown.js
@@ -14,6 +14,8 @@ import { loadLanguage } from '../prism/index'
 // To be disabled rules when parse markdown, Because content state don't need to parse inline rules
 import { CURSOR_ANCHOR_DNA, CURSOR_FOCUS_DNA } from '../config'
 
+const languageLoaded = new Set()
+
 // Just because turndown change `\n`(soft line break) to space, So we add `span.ag-soft-line-break` to workaround.
 const turnSoftBreakToSpan = html => {
   const parser = new DOMParser()
@@ -95,7 +97,6 @@ const importRegister = ContentState => {
     let block
     let value
     const parentList = [rootState]
-    const languageLoaded = new Set()
 
     while ((token = tokens.shift())) {
       switch (token.type) {
@@ -420,7 +421,7 @@ const importRegister = ContentState => {
           break
       }
     }
-    languageLoaded.clear()
+
     return rootState.children.length ? rootState.children : [this.createBlockP()]
   }
 
diff --git a/yarn.lock b/yarn.lock
index 9d8b30af..7c487e77 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -10144,10 +10144,10 @@ pretty-format@^27.2.5, pretty-format@^27.4.2:
     ansi-styles "^5.0.0"
     react-is "^17.0.1"
 
-prismjs@^1.25.0:
-  version "1.25.0"
-  resolved "https://registry.yarnpkg.com/prismjs/-/prismjs-1.25.0.tgz#6f822df1bdad965734b310b315a23315cf999756"
-  integrity sha512-WCjJHl1KEWbnkQom1+SzftbtXMKQoezOCYs5rECqMN+jP+apI7ftoflyqigqzopSO3hMhTEb0mFClA8lkolgEg==
+prismjs@^1.26.0:
+  version "1.26.0"
+  resolved "https://registry.npmjs.org/prismjs/-/prismjs-1.26.0.tgz#16881b594828bb6b45296083a8cbab46b0accd47"
+  integrity sha512-HUoH9C5Z3jKkl3UunCyiD5jwk0+Hz0fIgQ2nbwU2Oo/ceuTAQAg+pPVnfdt2TJWRVLcxKh9iuoYDUSc8clb5UQ==
 
 private@^0.1.8, private@~0.1.5:
   version "0.1.8"